Qualaroo is described as 'With a small snippet of code, Qualaroo makes it possible to target prompts by user behavior, specified needs, demographics, or any other internal data' and is a Survey Creator in the business & commerce category. There are more than 100 alternatives to Qualaroo, not only websites but also apps for a variety of platforms, including Android, iPhone, iPad and Android Tablet. The best alternative is SoGoSurvey, which is free. Other great sites and apps similar to Qualaroo are SurveyLab, Typeform, Zendesk and UseResponse.
Typeform is a Barcelona-based online software as a service (SaaS) company that specializes in online form building and online surveys. Its main software creates dynamic forms based on user needs. Typeform's software has been used by Apple Inc., Airbnb, Uber and Nike, Inc.
Unlike the most others solutions, SurveyJS Project consists of three fully independent parts: run-time SurveyJS library, SurveyJS editor and SurveyJS service for storing and analyzing results. You may stick with the complete solution or use only a library.